Muscular System

Question 1

What is the muscular system

Answer 1

The muscles of our body allow us to move, assist in keeping us alive and help with essential functions within the body.

Question 2

Skeletal muscle

Answer 2

Attached to the skeleton by tendons

Question 3

Cardiac muscle

Answer 3

Muscle that is only found in the heart

Question 4

Smooth muscle

Answer 4

Lines blood vessels and certain organs e.g. intestines or uterus

Question 5

Slow twitch

Answer 5

fires are able to maintain low to moderate activity for extended periods of time
They contain more red blood cells and appear a dark red color as a result. As they contain more blood, they are able to carry more oxygen around to the working muscles

Question 6

Fast Twitch

Answer 6

these are lighter in colour as they contain less red blood cells. They are able to produce enough energy for intense bursts of activity however, they are only able to sustain this intensity for short periods of time.

Question 7

Agonist

Answer 7

this is the muscle is the prime mover- muscle causing the action eg: Bicep curl- bicep

Question 8

Antagonist

Answer 8

Antagonist: this muscle is the muscle that is relaxing or lengthening

Question 9

Stabilisers

Answer 9

as the name suggests, these muscles stabilise the body and help maintain posture/form.

Question 10

Biceps

Answer 10

Flexion and supernation of the forearm.

Question 11

Triceps

Answer 11

Extension of the elbow joint

Question 12

Hamstring

Answer 12

Flexion at the knee joint and extension at the hip joint

Question 13

Quadriceps

Answer 13

Perform a variety of movements

Question 14

Gastrocnemius

Answer 14

Main plantarflexion of the ankle joint

Question 15

Tibialis anterior

Answer 15

Dorsi flexion at the ankle joint

Question 16

Pectoralis

Answer 16

Group of skeletal muscles that connect the upper extremeties

Question 17

Latissimus dorsi

Answer 17

A broad, flat muscle, that occupies the majority of the lower posterior thorax

Question 18

Gluteus

Answer 18

Help stabilize the upper body and pelvis, aid in locomotion, and extend the hips.

Question 19

Deltoid

Answer 19

Abduction of the arms at the shoulder joint

Question 20

What are the two type of muscle contractions

Answer 20

Isotonic and isometric

Question 21

Isotonic

Answer 21

these are the most common types of contractions that occur during physical activity

Question 22

Isometric

Answer 22

these contractions occur when the muscle is creating force however, the length of the muscle doesn’t change (does not shorten or lengthen).